KR20100138917A - Motor/transmission unit and modular system - Google Patents

Abstract

The invention relates, in particular, to motor / transmission units (1) for automobiles, which can be fixed to the transmission housing (3) and / or the motor housing (4 ', 4 "). A printed circuit board housing (12). According to the invention, the printed circuit board housing 12 can be fixed in different fixed positions. The invention also relates to a modular system.

Description

Motor / transmission unit and modular system

The present invention relates to a motor / transmission unit according to the preamble of claim 1 and to a modular system according to the preamble of claim 7.

For motor vehicles, motor / transmission units are known which are very versatile, for example configured for sunroof drives, window control drives or seat control drives. Generally, in a motor / transmission unit for a sunroof drive, a sliding contact holder (brush holder) is disposed on a printed circuit board of the motor / transmission unit. Preferably, the sliding contact holder, which is a current transfer member in the soldering process for fixing the active and passive electronic components on the printed circuit board, may be directly connected to the printed circuit board. However, there is a disadvantage in that the printed circuit board contour must be formed to enable the connection between the control electronics disposed on the printed circuit board and the sliding contact holder. This complicates the printed circuit board contour, which may result in undesirable use of the printed circuit board surface. Unused printed circuit board faces negatively impact manufacturing costs.

All motor / transmission units in a vehicle are commonly designed according to product specifications. That is, motor / transmission units having different configurations and different contours are used for different applications. This severely limits the use of the same components in the motor / transmission unit used, so that reductions in manufacturing costs are only very limited.

It is an object of the present invention to provide a motor / transmission unit that can be simply adjusted for different applications and therefore the maximum number of identical parts can be used for different applications. It is also an object of the present invention to propose a modular motor / transmission unit that can be adapted to a limited number of different parts for different uses.

This object is achieved by the features of claim 1 in the context of a motor / transmission unit and by the features of claim 7 in the context of a modular system. Preferred refinements of the invention are given in the dependent claims. All combinations of at least two features disclosed in the description, claims and / or drawings are possible in the scope of the invention.

The present invention relates to a transmission housing, preferably a motor / transmission unit having a motor housing and a printed circuit board housing, which can be fixed to the transmission housing, at least one printed circuit board housing, preferably receiving a printed circuit board. It is based on forming only so that it can be fixed in different fixed positions of the transmission housing and / or the motor housing. By providing at least two different fixed positions for the printed circuit board housing, it is possible to use one identical printed circuit board housing or one type of printed circuit board (for example the same printed circuit board housing) together with differently designed motor housings. It becomes possible. This is especially possible when at least two fixed positions match the usable motor housing or the interface position of the motor housing. In other words, all types of motor housings are assigned fixed positions for printed circuit board housings, thereby enabling electrical connection between the printed circuit boards contained in the corresponding printed circuit board housings and the electric motors contained in the corresponding motor housings at each fixed position. Do. The motor / transmission unit formed according to the concept of the invention makes it possible to be provided with one type of transmission housing for all applications, which alternatively has at least two differently designed, preferably different length motor housings. Can be fixed. In addition, one type of printed circuit board housing can be used with one type of transmission housing for all applications, and the printed circuit board housing can be fixed in different fixed positions and thus matched to the motor interface. Preferably the printed circuit board housed in the printed circuit board housing is a printed circuit board containing the motor control electronics. By providing a printed circuit board housing which can be fixed at different positions, it is possible to arrange a printed circuit board of one kind, preferably of rectangular outline, at different positions with respect to the transmission housing. In addition, different fixing positions are provided, which makes it possible to use printed circuit boards of different sizes, in particular of different lengths, preferably square contours, respectively. Since component diversity is reduced to a minimum in motor / transmission units formed in accordance with the inventive concept, many of the same components can be used for different applications, resulting in a significant reduction in manufacturing costs.

In a refinement of the invention, preferably, the longitudinal direction of the motor housing in which the printed circuit board housing can be fixed to the transmission housing and / or the motor housing, preferably the transmission housing, can be fixed to the transmission housing. It is arranged along the central axis. In other words, at least two different fixed positions lie on a fixed axis extending parallel to the longitudinal central axis of the motor housing or parallel to the motor shaft. The fixed positions are preferably arranged offset from one another by dimension X, which dimension is the spacing between two motor interfaces of different motor housings for contact of the printed circuit boards contained in the printed circuit board housing.

Particularly preferred is an embodiment in which the printed circuit board is secured to the printed circuit board housing prior to mounting so that it can be secured together with the printed circuit board housing or by fixing the printed circuit board housing to the transmission housing and / or the motor housing. This can eliminate the mounting step of separately securing the printed circuit board to the transmission housing and / or the motor housing. Preferably the fixing of the printed circuit board housing to the transmission housing and / or the motor housing is made by the formation of a shape-fitting bond. For example, the printed circuit board housing may be inserted into the recess in a direction transverse to the longitudinal direction of the motor housing. It is also possible to injection mold printed circuit boards and printed circuit board housings.

 Particular preference is given to embodiments in which the sliding contact holder (brush holder) is arranged in the motor housing and not on the printed circuit board, in which case the electrical contact for contacting the sliding contact or the motor interface is arranged on the printed circuit board. In this way, a printed circuit board having a simple outline can be used, and the available printed circuit board surface can be optimally used. It is particularly preferred that the electrical contacts on the printed circuit board and / or the sliding contacts are embodied in a press-in technique, ie as a non-soldered connection. This enables pre-assembly of the drive, with the printed circuit board automatically contacting the fixing of the printed circuit board housing.

Particularly preferably, connecting plugs and / or connecting sockets are provided for electrical and / or signal transmissive contact of a printed circuit board or control electronics arranged on the printed circuit board, the connecting plugs and / or connecting sockets being for example ejected. Molding can be an integral part of the printed circuit board housing or can be secured to the printed circuit board housing.

In a refinement of the invention the printed circuit board housing is preferably in the motor housing and / or in the transmission housing, so that the force action on the printed circuit board housing and / or the motor housing caused by the vibration can be compensated for. Only fixed to the transmission housing. To compensate for this force action, the printed circuit board housing is hinged, i.e. fixedly pivotable, to the transmission housing and / or the motor housing. This prevents the electrical contacts between the printed circuit board and the contact location for the sliding contact holder from absorbing high forces. For example, the printed circuit board housing can be fixed directly to the transmission housing by hinged peg connection.

The invention also relates to a modular system, preferably with the motor / transmission unit described above. Preferably the modular system is used in motor vehicles. The modular system comprises a transmission housing and a number of motor housings which can be fixed to the transmission housings, which are preferably differently designed, in particular of different lengths, for electric motors of different outputs and / or different configurations. In order to be able to use the modular system for different different applications, the present invention provides different fixed positions for the printed circuit board housing in the transmission housing and / or in the motor housing, preferably only in the transmission housing and / or differently. It is proposed to provide a printed circuit board housing, preferably of different lengths, in which case an appropriate printed circuit board housing is selected according to the application, and in the transmission housing and / or in the motor housing, preferably in the transmission housing. Can only be fixed. Matching for each electric motor or contact point position or interface position of the electric motor to be used may be made in a different manner. The printed circuit board housing (preferably including the printed circuit board) is fixed in a different position with respect to the transmission housing, preferably directly in the transmission housing, so that different kinds of motors can be contacted. As an alternative, it is contemplated to arrange different sized printed circuit board housings which can be fixed in only one fixed position or, if necessary, in a different fixed position in the transmission housing and / or in the motor housing, preferably only in the transmission housing. This can ensure contact of differently designed or differently configured motors. Modular systems may include one type of printed circuit board. Alternatively, by positioning the printed circuit board housings in different locations and / or by using printed circuit board housings of different sizes, different size printed circuit boards, in particular two types of printed circuit boards, may be used with the same transmission housing. Can be.

Particular preference is given to embodiments of the system which are designed differently, preferably comprising motor housings of different lengths, in which case each motor housing is preferably assigned a unique or special electric motor. Preferably, different motor housings are used with one same transmission housing or one type of transmission housing. Preferably, the interfaces of different motor housings are identically formed, whereby it is possible to selectively place different motor housings in one and the same position of one and the same transmission housing.

In a refinement of the invention, preferably, motor housings are designed that are assigned correspondingly to each (different) fixed position of each (different) printed circuit board housing and / or (preferably the same printed circuit board housing), In this case, the printed circuit board housing or the fixed positions may be connected to the motor housing such that the printed circuit board disposed in the printed circuit board housing can be electrically connected to the electric motor disposed in the motor housing and / or connected in a signal transmission manner. Matches.

As mentioned above, differently designed printed circuit boards, preferably by different lengths, are arranged (or alternatively) by the arrangement of differently designed printed circuit board housings and / or by providing different fixed positions. Can be used with transmission housings of the same type.

In the case where differently designed printed circuit boards are provided, differently designed motor housings are allocated to each of the differently designed printed circuit boards, in which case the printed circuit board and the motor housing are matched with each other so as to be conductively connected to each other.

Other advantages, features and details of the present invention are described with reference to the drawings in the following description of the preferred embodiments.

According to the invention, there is provided a motor / transmission unit that can be simply adjusted for different uses, so that a maximum number of identical parts can be used for different uses. In addition, a modular motor / transmission unit is provided that can be adapted to a limited number of parts for different applications.

1 is a motor / transmission unit having a transmission housing, a motor housing and a printed circuit board housing in a first fixed position.
FIG. 2A shows the motor / transmission unit shown in FIG. 1 with the printed circuit board housing in a second fixed position. FIG.
FIG. 2b shows a state in which the motor / transmission unit according to FIG. 2a is rotated 90 degrees; FIG.
3 is a partially enlarged view of a printed circuit board housing fixed in a first fixed position of the transmission housing;
4 shows a printed circuit board housing fixed in a second fixed position of the transmission housing;
5 shows a printed circuit board housing with an integrated connection socket.
6A shows a printed circuit board housing having a connection socket that can be secured to the printed circuit board housing.
6b shows the mounted part according to FIG. 6a;
7A shows a motor / transmission unit in which the printed circuit board housing can be pivotally fixed in two fixed positions of the transmission housing.
7b shows a fully mounted motor / transmission unit according to FIG. 7a.

The same parts in the drawings and the same functional parts have the same reference numerals.

1 to 2b show a modular system of motor / transmission unit 1. The modular system comprises a transmission 2 formed as a worm gear device, which has an integral transmission housing 3. Differently designed motor housings 4 ', 4 "in this case can be fixed in the transmission housing 3. For this purpose the two motor housings 4', 4" are of the same type It has a motor housing interface 5 of the same type for selectively securing to the interface 6. In the illustrated embodiment of the modular system, the transmission 3 comprises a transmission worm 8 rotatably connected relative to the motor shaft 7, the transmission worm engaging the driven gear 10, the driven gear Drives, for example, an unillustrated mechanism for the adjustment of window panes, sunroofs or vehicle seats.

The lengths of the motor housings 4 ', 4 ", ie the axial lengths, differ by a distance X. The distance X is arranged in the motor housing 4' or 4", exactly the motor housing 4 'or 4 ". Connection distances 11 'or 11 "(motor interface) for electrical connection of the electric motors (not shown) are offset from one another along the length of the motor housing 4', 4".

In the transmission housing 3 the printed circuit board housing 12 can be fixed in different fixed positions. The printed circuit board housing 12 is fixed in the first fixed position of the transmission housing 3 in FIG. 1, in the second fixed position in FIG. 2a, and the second fixed position is the motor housing 4 ′, 4 ″. A printed circuit board 13 ′ supporting an unshown control electronics housed in a homogenous printed circuit board housing 12 at each fixed position by being offset relative to the first fixed position by a distance X along the length of It may be connected to each of these connection contacts 11 'or 11 "(motor interfaces). In other words, the electrical contacts 14 of the printed circuit board 13 '(control plate interfaces to the motor housing and / or motor) are connected to the corresponding motor housing 4' or 4 "in their respective fixed positions. At each height of 11 'or 11 ". Each stationary position is assigned one type of motor housing 4 'or 4 ", and thus one motor interface position. That is, two stationary positions of the transmission housing 3 (see FIGS. 1 and 2A). The printed circuit board housing 12, which can be fixed, is arranged, so that a printed circuit board housing having electrical contacts 14 for contact of the corresponding motors, except for motors having corresponding motor housings 4 ', 4 ", 12) Other members such as the printed circuit board 13 'and the transmission housing 3 can be used for different applications. Since only the printed circuit board housing 12, to which the printed circuit board 13 'is fixed, can be fixed in the corresponding fixed position of the transmission housing 3, the printed circuit board 13' is connected to the corresponding motor housing 4 'or 4 "). The connecting contact 11 'or 11" may be a component of the motor housing 4', 4 "or the integration of an electric motor housed in the motor housing 4 ', 4". It may be a component.

As shown in FIGS. 1 and 2B, the printed circuit board housing 12 is for electrical and signal transfer contact of the printed circuit board 13 ′ or an electronic device disposed thereon and on the printed circuit board 13 ′. A connecting plug 15 for contacting the connecting contacts 11 ′, 11 ″ via the electrical contact 14.

A printed circuit board usable as an alternative to the printed circuit board 13 'if necessary is shown at 13 ", which has a rectangular contour like the printed circuit board 13' but longer in length. The printed circuit board 13 "may be disposed in the printed circuit board housing 12 in the second fixed position because it receives one of the printed circuit boards 13 'or 13" in the second fixed position. This is because the internal space provided to expand the distance X.

3 and 4, the homogeneous printed circuit board housing 12 shown only partially differs with respect to the transmission housing 3 at different fixed positions along the length of the motor housing 4 ′ or 4 ″. In the embodiment shown in Fig. 3, the printed circuit board housing 12 is placed in a first fixed position, and in Fig. 4 the same printed circuit board housing 12 is placed in a second fixed position. The second fixed position is arranged offset by a distance X along the longitudinal center axis of the motor housing 4 ', 4 ".

In the illustrated embodiment of the modular system, the fixing of the printed circuit board housing 12 in different fixed positions is accomplished by inserting or sliding the printed circuit board housing 12 over the dovetail shaped spring 16. The springs 16 extend parallel to one another and are oriented in the transverse direction with respect to the longitudinal center axis of the motor housings 4 ′ and 4 ″. The springs 16 are corresponding grooves of the printed circuit board housing 12. It is received after being inserted into 17, and in the second fixed position (see Fig. 4), the lower groove 17 is empty as viewed from the drawing plane.Two springs 16 adjacent to each other are adjacent to each other. Are spaced apart from each other, as shown in Figs. 3 and 4, the printed circuit board 13 'is connected to the corresponding printed circuit board housing 12, and the printed circuit board is connected to the transmission housing 3; The substrate housing 12 is fixed so that the substrate housing 12 is fixed together with the printed circuit board housing 12.

5 shows a possible embodiment of a printed circuit board housing 12. The grooves 17 extending parallel to each other are shown, which are arranged laterally for implementing a groove-spring-connection with a transmission housing not shown in FIG. 5. It can be seen that the spacing between two adjacent grooves 17 is the same and corresponds to the distance X. A recess 18 is shown on the left side of the printed circuit board housing 12 when viewed in the drawing plane. Through the recess, the connection contacts 11 ′ and 11 ″ shown in FIGS. 1 and 2A may be guided.

As shown in FIG. 5, the connecting socket 15 is an integral component of the housing 12. Contact pins 19 used for contacting a printed circuit board (not shown) are ejected from the plastic material forming the printed circuit board housing 12.

6A and 6B show an alternative embodiment for implementing a printed circuit board housing 12 having a connection socket 15. In this case, the connecting socket 15 is formed as a separate part from the printed circuit board housing 12, and the connecting socket 15 can be coupled in a shape-fitting manner to the printed circuit board housing 12 by sliding. have. Thus, one and the same printed circuit board housing 12 can be used for different connection sockets 15 or connection plugs, and the prerequisite is that only one interface is provided for the printed circuit board housing 12.

6b shows a mounted device comprising a printed circuit board housing and a separate connection socket 15.

7a and 7b show another embodiment of the motor / transmission unit 1. The transmission housing 3 is shown fixed to the motor housing 4 ′. As an alternative, longer motor housings can be mounted in the same transmission housing 3. The motor housing 4 'has a connecting contact 11' for contacting a printed circuit board (not shown) accommodated in the printed circuit board housing 12. The corresponding housing section 20 of the connecting contact 11 ′ or motor housing 4 ′ can be guided through the side recesses 18 in the printed circuit board housing 12 for this purpose. As shown in the figure, the printed circuit board housing 12 has an integrated connection socket 15 in the illustrated embodiment.

In the embodiment of the motor / transmission unit 1 shown in FIGS. 7A and 7B, the printed circuit board housing 12 is spaced apart from each other in the axial direction with respect to the motor axis (length central axis) on the transmission housing 3. In two different fixed positions. To this end, the transmission housing 3 comprises two pegs 21 which are arranged opposite each other and lie on a virtual axis extending transverse to the motor axis. Two pairs of axially spaced apart (interval X) axially spaced (spaced X) on two lateral sides of the printed circuit board housing 12 are assigned to the cylindrically formed pegs 21, Only one recess of each of the recess pairs 22 and 23 is shown in the drawing plane. Depending on which recess pairs 22 and 23 the peg 21 is locked, one of the other motor housings 4 'or the other of the other designed or printed circuit boards contained in the printed circuit board housing 12 or The motor may be in contact. In the embodiment shown in FIGS. 7A and 7B, the hinged connection of the printed circuit board housing 12 to the transmission housing 3 provides the advantage that vibrations can be compensated, thereby connecting connection 11 ′ ( The motor interface) is reduced.

The assembly direction indicated by reference numeral 24 in Fig. 7a is shown, in which the printed circuit board housing 12 must be adjusted relative to the transmission housing 3 in this direction for hinged fixation to the transmission housing 3.

In figure 7b a mounted motor / transmission unit 1 is shown. Arrows 25 and 26 indicate the turning directions that can be pivoted about pivot axis 27 relative to motor housing 4 'and transmission housing 3 with printed circuit board housing 12 mounted thereon. In this case, the pivot shaft 27 passes through the peg 21 and the recess pair 22 on the left side when viewed from the drawing plane.

An arrow, indicated by reference numeral 28, shows the insertion direction for fixing the plug contact to the connecting socket 15. As shown in FIG.

3 transmission housing
4 ', 4 "motor housing
12 printed circuit board housing
13 ', 13 "printed circuit board

Claims (10)

Especially motor / transmission for vehicles with a printed circuit board housing 12 for a printed circuit board 13 ′, 13 ″, which can be fixed to the transmission housing 3 and / or the motor housing 4 ′, 4 ″. In the unit,
The motor / transmission unit according to claim 12, wherein the printed circuit board housing can be fixed at different fixed positions. 2. The fixed positions according to claim 1, wherein the fixed positions are arranged at equal intervals with respect to the longitudinal central axis along the longitudinal central axis of the motor housing 4 ′, 4 ″ which can be fixed to the transmission housing 3. Characterized by a motor / transmission unit. 3. The printed circuit board (13 ', 13 ") can be fixed to and / or fixed to the printed circuit board housing (12), preferably in one of the fixed positions. Motor / transmission unit, characterized in that the area between the transmission housing (3) and the printed circuit board housing (12) by fixing the printed circuit board housing (12). 4. The printed circuit board (13 ′, 13 ″) has an electrical contact (14) for contacting a sliding contact, the sliding contact having the motor housing (4 ′). Motor, transmission unit, supported by a sliding contact holder disposed 4 "). 5. A connection plug and / or connection socket (15) for the printed circuit board (13 ', 13 ") is provided, and the connection plug and / or connection socket (15) is connected to the printed circuit board housing (5). 12. A motor / transmission unit, characterized in that it is an integral component of 12) or can be fixed to said printed circuit board housing. 6. The printed circuit board housing (12) according to claim 1, wherein the printed circuit board housing (12) fixed to the motor housing (4 ′, 4 ″) and / or to the transmission housing (3) is provided with the motor housing ( 4 ', 4 ") and pivotally supported relative to the transmission housing (3). A modular system, in particular for a vehicle, preferably with a motor / transmission unit 1 according to claim 1, wherein at least one transmission housing 3, at least one motor housing 4 ′. 4 ") and at least one printed circuit board housing 12 which can be secured to said transmission housing 3 and / or to said motor housings 4 ', 4".
The printed circuit board housing (12) may be fixed at different fixed positions of the transmission housing (3) and / or the motor housing (4 ', 4 ");
And / or a printed circuit board housing 12 of different design, preferably of different lengths, which can alternatively be fixed to the transmission housing 3 and / or to the motor housings 4 ', 4 ". Modular system characterized in that. 10. Modular system according to claim 7, characterized in that differently designed, preferably different length motor housings (4 ', 4 ") are provided for the correspondingly differently formed motors. 9. A motor according to claim 8, wherein motor housings 4 ', 4 "are assigned to each printed circuit board housing 12 and / or in each fixed position, and each printed circuit board housing 12 and the corresponding motor are arranged. The housings 4 ', 4 "and / or their respective fixed positions and the corresponding motor housings 4', 4" are motors arranged in the motor housings 4 ', 4 ", in particular the printed circuit board housings. Modular system, characterized in that they are matched to each other such that they can be brought into electrical contact via a printed circuit board (13 ', 13 ") housed in (12). 10. Printed circuit boards 13 ', 13 "of differently designed, preferably different lengths, are provided, and one motor housing (10) for each printed circuit board dimension. 4 ', 4 ", and each of the printed circuit board dimensions and the corresponding motor housings 4', 4" have a motor disposed in the corresponding motor housings 4 ', 4 ". 13 ', 13 "

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